I have been using Barca/ Poco for over 10 years and in the last year have been using it for my primary job working for an outside company. They have recently switched to an exchange server and I need to be able to continue getting my mail in Barca- I do NOT want to have to switch to Outlook and tackle the incredible annoyance of trying to export my 200+ folders and over 5,000 messages into outlook as I already can see from other posts that is going to be difficult.

I have tried every variation of setting up the account as an IMAP account and nothing is working. I am starting to think there is a setting or something that my exchange server admin needs to change on that end to allow me to be able to check through software other than Outlook. If anyone can give me help on what my exact settings should be, and maybe if there is something that needs to be done on the other end.

Yes I believe IMAP must be enabled on your Exchange server. Checking with your Exchange admin will shed light on this - (s)he should advise whether possible and if so, the settings (imap server address,...).